Carburetor



N. E. GASTON CARBURETOR Y Filed Nov'. 16. 1928 Feb. 11, 1930.

Patented Feb. 11, 1930 UNITED STATES NATHAN E. GASTON, OF GULFPORT,MISSISSIPPI CARBURETOR Application lcd November 16, 1928. Serial No.319,955.

This invention relates to carburetors and has for an important objectthereof the provision of a carburetor, wherein atomization of a liquidfuel is carried to a point where the substance is so finely divided asto produce substantially a gas.

A further and more specific object of the invention is to provide meansfor use in a carburetor and with which the fuel engages after itsatomization at the usual fuel nozzle whereby the fuel is more finelydivided and more intimately mingled with the air sup- Py- A further andstill more specific object of the invention is the provision in acarburetor of passages through which the atomized fuel and air must movehaving arranged therein a non-corrosive shredded filling which acts tothoroughly intermingle the air and particles of fuel and to furtherreduce the particles of fuel in size as respects the ordinary resultobtained by an atomizcd nozzle.

A still further object of the invention is to provide means forproducing` the same effeet in the charge by-passed around the throttleduring idling operations.

These and other objects I attain by the construction shown in theaccompanying drawing, wherein for the purpose of illustration is shown apreferred embodiment of my invention and wherein Figure 1 is a verticalsectional View through a carburetor constructed in accordance with, myinvention;

Figure 2 is a horizontal sectional view therethrough.

Referring now more particularly to the drawing, the numeral 10designates a chamber which may be of any desired form and which has anair inlet 11, a fuel mixture out-Y let 12 and choke and throttlevalvesarranged in said inlet and outlet which are preferablyof thebutterfly type, as, indicated at 13 and 14. The throttle valve 14 islocated at the' inner end of the outlet, for a purposepresently toappear. The chamber embodies-ad'- jacent its outlet end, means producinga plurality of tubes 15. In th-e present instance, this means isprovided by actually employing tubes, the walls of which are sealed toone another and to the wall of the chamber, by a plate 16. The plate 16is arranged Within the chamber 10 an d has its edge secured to the wallof the chamber. The plate 16 is provided with openings for the receptionof the tubes 15, and the walls of the openings aresecured to the tubes.Each tube 15 has arranged therein a non-corrosive shredded filling 17,which may conveniently comprise a form ofl mineral wool. This fillingmay be heldin positionin the tubes in any suitable manner, being atpresent illustrated as frictionally maintained in position therein.Other means for accomplishing this result may obviously be employed, ifdesired. That portion o-f the chamber 10 located below the tubes 15constitutes an outlet chamber, and the valve 14 when closed divides thischamber into an inner and an outer port-ion.

Between the inlet 11 and the adjacent ends of the tubes 15, a jet nozzle18 supplied from a convenient source, Vsuch as a float chamber 19,projects into the chamber and preferably has its open terminus locatedadjacent the longitudinal axis of the chamber. The supply to this nozzlemay be controlled in any convenient manner, the ioat chamber being atpresent indicated as provided with a needle valve 20 controlling 'thesupply thereto. Formed in the wall of the chamber is a longitudinallyextending passage 21, one end of which opens into the outlet 12outwardly of thethrottle valve 14 and the opposite end of which isclosed, with the exception of a small opening 22 controlled by a needlevalve 28. Atube 24 communicates with this passage adjacent its upper endand the outer end ofthis tube is open. The side walls of the tubev 24and nozzle 18 merge and a small opening is formed therethrough, placingthe bore of the nozzle in communication with the interior of the tube,as indicated at 25. l/Jithin the passage 21, a wadding of non.-corrosive shredded material, such as that em-` ployed in the tubes 15,is arranged.

In ordinary operation of a carburetor kof this character, the incomingair is mingled with the supply of fuel at the nozzle 18 and in passingthrough the tubes 15, the fuel is thoroughly broken up by contact withthe shredded wadding, so that its entire surface is exposed for Contactwith the air and as a result, a very intimately mixed fuel is produced.When the throttle valve 14 is closed or nearly closed as in idling, airwill be drawn through the tube 24 and passage 21 and in moving throughthe tube, Will have added thereto particles of fuel received through theport 25. Additional air may be admitted through the port 22, as desired,to control the idling operation, and this air will be thoroughlyintermingled with the primary air and fuel during passage through thewadding.

It will be obvious that while the wadding material has been illustratedas disposed in a plurality of tubes, this construction is merely adoptedfor convenience and that, if desired, a single tube or the bore of thechamber could be employed to support this material.

It will also be obvious that a structure such as illustrated is capableof a certain range of change and modification without materiallydeparting from the spirit of the invention and I accordingly do notlimit myself thereto except as hereinafter claimed.

I claim 1. In a carburetor, a walled chamber having an air inlet and afuel mixture outlet, a plurality of tubes vertically disposed in thechamber between the inlet and outlet, means sealing the spaces betweenthe tubes and between the tubes and the walls of the chamber, anatomizer nozzle between the inlet and the adjacent ends of the tubes, anon-corrosive shredded filling for said tubes, a valve in said chamberbeyond the inlet from said atomizer nozzle and controlling the flow ofair through said tubes, a passage by-passing the valve and communicatingwith the chamber between the inlet and valve, and means for transferringfluid from the atomizer nozzle to said passage operative upon themovement of air through said passage.

2. In a carburetor, a walled chamber having an air inlet and a fuelmixture outlet, a plurality of tubes vertically disposed in the chamberbetween the inlet and outlet, means sealing the spaces between the tubesand between the tubes and the walls of the chamber, an atomizer nozzlebetween the inlet and the adjacent ends of the tubes, a non-corrosiveshredded illing for said tubes, a valve in said chamber beyond the inletfrom said atomizer nozzle and controlling the iow of air through saidtubes, a passage by-passing the valve and communicating with the chamberbetween the inlet and valve, means for transferring fluid from theatomizer nozzle to said passage operative upon the move-ment of airthrough said passagc,'and means operable from the exterior of thechamber for admitting additional air to said passage.

3. In a carburetor, a Walled chamber having an air inlet and a fuelmixture outlet, a plurality of tubes vertically disposed in the chamberbetween the inlet and outlet, means sealing the spaces between the tubesand between the tubes and the walls of the chamber, an atomizer nozzlebetween the inlet and the adjacent ends of the tubes, a non-corrosiveshredded filling for said tubes, a valve in said chamber beyond theinlet from said atomizer nozzle and controlling the -flow of air throughsaid tubes, a passage by-passing the valve and communicating with thechamber between the inlet and valve, means for transferring fluid fromthe atomizer nozzle to said passage operative upon the movement of airthrough said passage, and means operable from the exterior of thechamber for admitting additional air to said passage, the passage havinga non-corrosive shredded filling therein.

4. In a carburetor, a walled chamber having an air inlet and a fuelmixture `outlet chamber, a plurality of tubes vertically disposed in thechamber between the inlet and the outlet chamber, means sealing thespaces between the tubes and between the tubes and the walls of thechamber, an atomizer'nozzle between the inlet and the adjacent ends ofthe tubes, a non-corrosive shredded filling for said tubes, a valveadapted when closed to divide said outlet chamber into inner and outerportions and controlling the flow of air through said tubes, a passagecommunicating with the chamber between the inlet and the adjacent endsof the tubes and with the outer portion of said outlet chamber, anon-corrosive shredded filling for said passage, and means forintroducing a liquid fuel to said passage.

5. In a carburetor, a walled chamber having an air inlet and a fuelmixture outlet chamber, a plurality of tubes vertically disposed in thechamber between the inlet and the outlet chamber, means sealing thespaces between the tubes and between the tubes and the walls of thechamber, an atomizer nozzle between the inlet and the adjacent ends ofthe tubes, a non-corrosive shredded filling for said tubes, a valveadapted when closed to divide said outlet chamber into inner and outerportions and controlling the flow of air through said tubes, a passagecommunieating with the chamber between the inlet and the adjacent endsof the tubes and with the outer portion of the outlet chamber, anon-corrosive shredded filling for said passage and a port connectingthe atomizer nozzle and said passage.

6. In a carburetor, a Walled chamber having an air inlet and a fuelmixture outlet chamber, a plurality of tubes vertically disposed in thechamber between the inlet 'and the outlet chamber, means sealing thespacesy between the tubes and between the tubes and the walls of thechamber, an atomizer nozzle between the inlet and the adjacent ends ofthe tubes, a non-corrosive shredded filling for said tubes, a Valveadapted when closed to divide said outlet chamber into inner and outerportions and controlling the flow of air through said tubes, a passagecommunicating with the Chamber between the inlet and the adjacent endsof the tubes and With the outer portion of the outlet chamber, anon-corrosive shredded iilling for said passage, a port oonnecting theatomizer nozzle and said passage, and means for admitting additional airto said passage controllable from the exterior of the chamber.

In testimony whereof I hereunto ax my signature.

NATHAN E. GASTON.

